401932870 has 32 divisors (see below), whose sum is σ = 767436768. Its totient is φ = 151039488.

The previous prime is 401932849. The next prime is 401932877. The reversal of 401932870 is 78239104.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401932877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107472 + ... + 111148.

It is an arithmetic number, because the mean of its divisors is an integer number (23982399).

Almost surely, 2^401932870 is an apocalyptic number.

401932870 is a deficient number, since it is larger than the sum of its proper divisors (365503898).

401932870 is a wasteful number, since it uses less digits than its factorization.

401932870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4344.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 401932870 is about 20048.2635158260. The cubic root of 401932870 is about 737.9911855744.

The spelling of 401932870 in words is "four hundred one million, nine hundred thirty-two thousand, eight hundred seventy".